In order for your email to be accepted in email integration, you need to use app password.
To generate, create a new Gmail account. In your Gmail account, select Manage your Google Account.

Click Get Started.

You will be required to enter your password to confirm your identification. Enter your password then click Next.
Step 1 of 3: Enter your mobile number.
Step 2 of 3: Enter the code that was sent to your mobile number.

Step 3 of 3: Click TURN ON.

Go back to security page. Click App Password.

Select App and Select Device.

Choose Mail and Choose Windows Computer. Click Generate.

Generated App Password will be shown.
